A 5m long ladder leans against a frictionless wall at an angle of 54° as shown below. LeSm Centre of mass -54 (a) From the diagram above write down expressions for the x and y components of translational equilibrium and for rotational equilibrium. The pivot point should be at the base of the ladder.. (b) Using the expressions for translational and rotational equilibrium in (a) what is the minimum value of the coefficient of static friction, us, with the ground that prevents the ladder slipping?

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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Question 4.
A 5m long ladder leans against a frictionless wall at an angle of 54° as shown below.
L5m
di
Centre
of mass
0-54
(a) From the diagram above write down expressions for the x and y components of translational equilibrium
and for rotational equilibrium. The pivot point should be at the base of the ladder..
(b) Using the expressions for translational and rotational equilibrium in (a) what is the minimum value of the
coefficient of static friction, u., with the ground that prevents the ladder slipping?
Transcribed Image Text:Question 4. A 5m long ladder leans against a frictionless wall at an angle of 54° as shown below. L5m di Centre of mass 0-54 (a) From the diagram above write down expressions for the x and y components of translational equilibrium and for rotational equilibrium. The pivot point should be at the base of the ladder.. (b) Using the expressions for translational and rotational equilibrium in (a) what is the minimum value of the coefficient of static friction, u., with the ground that prevents the ladder slipping?
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